Maine Earth First! spokeswoman Emily Posner said one woman who was arrested attached herself to a truck hauling a windmill blade. The two others arrested were among about 50 people who blocked the road to TransCanada’s Kibby Mountain construction site Tuesday morning.

TransCanada spokeswoman LeAnne said says work continues at the site.

TransCanada is building 22 wind turbines on mountains near where it already has built 22 turbines that are producing power. Maine Earth First! said projects such as TransCanada’s destroy mountaintops and don’t offset fossil fuel use.